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The Structure And Characteristics Of Plate Heat Exchanger
Plate heat exchanger is a series of a certain corrugated shape of the metal sheet stacked from a new type of highly efficient heat exchanger. Between the various plates to contain a thin rectangular channel to change the heat through the half of the heat exchange. There are two kinds of frame type (detachable type) and brazing type. The main form of plate is corrugated plate, horizontal flat corrugated plate and tumor plate.
The plate heat exchanger introduction
Plate heat exchanger is mainly composed of two parts of the frame and the plate. The plates are made of various materials in a variety of different forms of abrasive pressure into different shapes of corrugations, and in the four corners of the plate has a corner hole for the media flow channel. The peripheral and corners of the plate are sealed with a rubber gasket.
The frame is composed of a fixed pressing plate, a movable pressing plate, an upper and lower guide rod and a clamping bolt.
Plate heat exchanger is the plate in the form of superimposed on the fixed compression plate, the middle of the dynamic compression plate, and then clamped with clamping bolts.
The features of the plate heat exchanger
1. High heat transfer coefficient. Due to different corrugation direction is different, constitute a different media channel, leading to the inside media cross flow, so have the faster heat transfer;
2. Large logarithmic average temperature difference, while the end temperature difference. The plate heat exchanger is a parallel or countercurrent flow mode, the correction factor is usually around 0.95, in addition, cold and hot fluid flow in the plate heat exchanger parallel to the heat transfer surface, so that the end of the plate heat exchanger temperature difference is small, the water heat transfer can be less than 1 ℃. So the temperature can be less demanding medium to play a good heat transfer effect.
3. Easy to change the heat transfer area or process combination. As long as the increase or decrease of several plates, you can achieve the purpose of increasing or reducing the heat transfer area; at the same time can change the use of heat exchanger conditions.Findeen.com
4. Low price. In the same heat transfer area and the same material, the plate heat exchanger price similar to the shell-like about 40% to 60%.
5. Easy to produce. The plate heat exchanger plate is the use of stamping processing, a high degree of standardization, it can be mass production, and other heat exchangers need to manually processing.
6. Easy to clean. The beam bundle easy to disassemble, as long as the loose compression bolts. So need to clean down when cleaning more convenient cleaning, the need for regular cleaning equipment is very convenient.